Company lists · Data refreshed November 2026

Top 24 Penetration testing training software companies based in the United Kingdom

Name: Penetration testing training software companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 198 companies tracked

RevenueBase identified 198 company matches for penetration testing training software companies associated with the United Kingdom as of November 2026 and tracks 6,700 professional contacts across them, including 738 with verified work emails. London is the largest hub.

This list covers company matches for penetration testing training software companies associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built

198Companies

6,700Contacts tracked

738Verified emails

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The 24 largest penetration testing training software companies based in the United Kingdom

Ranked by team size

Top 24 of 198 company matches for penetration testing training software companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Tryhackme	Exact match	London, United KingdomHQ recorded Nov 5, 2026	n/a	2,743 contacts →
	Exact match “TryHackMe takes the pain out of learning and teaching Cybersecurity.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2	Hack The BOX	Exact match	Folkestone, United KingdomHQ recorded Nov 5, 2026	n/a	1,760 contacts →
	Exact match “Hack The Box is the leading cyber readiness platform for the human-AI cyber workforce, helping organizations develop and measure the capabilities of the people and AI agents…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3	Portswigger	Exact match	Knutsford, United KingdomHQ recorded Nov 5, 2026	51-200	288 contacts →
	Exact match “PortSwigger is a global leader in the creation of software tools for security testing of web applications.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4	Capslock	Exact match	Manchester, United KingdomHQ recorded Nov 5, 2026	n/a	233 contacts →
	Exact match “At CAPSLOCK, we’re redefining how adults transition into cyber security.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5	Security Blue Team	Exact match	London, United KingdomHQ recorded Nov 5, 2026	n/a	185 contacts →
	Exact match “Security Blue Team is now Centri.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6	Hackviser	Exact match	London, United KingdomHQ recorded Nov 5, 2026	n/a	61 contacts →
	Exact match “Tailored cybersecurity upskilling platform for all levels, catering to beginners and pros.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7	MDSEC	Exact match	Macclesfield, United KingdomHQ recorded Nov 5, 2026	11-50	57 contacts →
	Exact match “MDSec are a UK based consultancy with a passion for information security.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8	Redscan, A Kroll Business	Exact match	London, United KingdomHQ recorded Nov 5, 2026	51-200	52 contacts →
	Exact match “Redscan is an award-winning provider of managed security services, specialising in Managed Detection and Response, Penetration Testing and Red Teaming.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9	Sans Emea	Exact match	Swansea, United KingdomHQ recorded Nov 5, 2026	201-500	52 contacts →
	Exact match “SANS is the world's largest and most trusted provider of cyber security training.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10	Rootshell Security	Exact match	Basingstoke, United KingdomHQ recorded Nov 5, 2026	51-200	51 contacts →
	Exact match “Rootshell Security delivers human-led, AI-augmented Continuous Testing and Operational Continuous Threat Exposure Management (CTEM).” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11	Onsecurity	Exact match	Bristol, United KingdomHQ recorded Nov 5, 2026	51-200	49 contacts →
	Exact match “OnSecurity offers CREST-accredited AI Augmented Penetration Testing, all whilst harnessing technology to simplify the management and delivery of pentesting.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12	Boxphish	Exact match	Leeds, United KingdomHQ recorded Nov 5, 2026	11-50	36 contacts →
	Exact match “Boxphish is a low touch cyber-SAT platform that arms organisations and their people, with the tools and knowledge needed to spot cyber attacks.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13	The Secops Group	Exact match	Cambridge, United KingdomHQ recorded Nov 5, 2026	11-50	32 contacts →
	Exact match “Pentesting Exams by Pentesting Experts.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14	Cyberwarfare Labs	Exact match	Cambridge, United KingdomHQ recorded Nov 5, 2026	11-50	31 contacts →
	Exact match “CyberWarfare Labs (CWL) is a global cyber security education platform on a single mission, making practical cybersecurity Accessible, Affordable, and Unstoppable.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15	Bob's Business The Cybersecurity Culture Company	Exact match	Barnsley, United KingdomHQ recorded Nov 5, 2026	11-50	29 contacts →
	Exact match “We work with organisations to improve their information security and data governance through training tools that capture employee attention and build positive new behaviours.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	Toro Solutions	Exact match	London, United KingdomHQ recorded Nov 5, 2026	11-50	25 contacts →
	Exact match “Toro was founded on creating the UK's first Red Team penetration test - and then attacking hundreds of clients by hacking their systems, influencing / social engineering staff and…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17	Secure Schools	Exact match	Newmarket, United KingdomHQ recorded Nov 5, 2026	11-50	21 contacts →
	Exact match “Reduce cybersecurity risks with expert tools and services, built specifically for schools.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	Stationx	Exact match	Shrewsbury, United KingdomHQ recorded Nov 5, 2026	11-50	20 contacts →
	Exact match “Grow your skills and advance your career with The #1 Cyber Security Training and Career Development Platform Top-rated online cyber security training Pass the top certification…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19	Ruptura Infosecurity	Exact match	Milton Keynes, United KingdomHQ recorded Nov 5, 2026	11-50	15 contacts →
	Exact match “We offer specialist CREST & CHECK Approved Penetration Testing services in order to secure our clients most critical assets.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20	Hacker Academy	Exact match	London, United KingdomHQ recorded Nov 5, 2026	1-10	15 contacts →
	Exact match “We Help Your Company Culture to Have a Successful Cybersecurity Posture.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21	Mobius Binary	Exact match	Bath, United KingdomHQ recorded Nov 5, 2026	11-50	14 contacts →
	Exact match “At Mobius Binary we care about your reputation and the loss that could result from violating your digital boundaries.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22	Smartlearning UK	Exact match	London, United KingdomHQ recorded Nov 5, 2026	11-50	14 contacts →
	Exact match “We are IT security experts, providing job-ready online training through hands-on and project-based learning” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	Laburity	Exact match	Holborn, United KingdomHQ recorded Nov 5, 2026	1-10	13 contacts →
	Exact match “Laburity: Cyber Security Research and Services Company.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24	Forfend Information Security	Exact match	Birmingham, United KingdomHQ recorded Nov 5, 2026	1-10	8 contacts →
	Exact match “Affordable protection, priceless peace of mind.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “penetration testing training software companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 24 of 198 penetration testing training software companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 738 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Penetration testing training software companies based in the United Kingdom at a glance

As of Nov 5, 2026

11.0%Verified-email coverage

33.8Average contacts per company

1-10Median size (employees)

43.9%Largest-city concentration · London

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

128

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 198 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United Kingdom whose business descriptions match “penetration testing training software companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 738 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on November 5, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Penetration testing training software companies by metro

Penetration testing training software companies in London87

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “penetration testing training software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many penetration testing training software companies are there based in the United Kingdom?

RevenueBase identified 198 company matches for penetration testing training software companies associated with the United Kingdom as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Tryhackme tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most penetration testing training software companies?

London leads with 87 company records, followed by Manchester (10) and Cheltenham (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 738 professional contacts with verified work emails tracked across these 198 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 5, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.